EduSahara™ Assignment
Name : Median of Raw Data
Chapter : Mean and Median of Ungrouped Data
Grade : ICSE Grade IX
License : Non Commercial Use
Question 1
1.
    • The scores obtained by 7 students in a test are given below. Find the median.
      • 4
      • 7
      • 13
      • 7
      • 11
      • 17
      • 19
  • (i)
    19
  • (ii)
    4
  • (iii)
    11
    1

    7
  • (iv)
    15
  • (v)
    11
Question 2
2.
Find the median of all prime numbers between 20 and 70.
  • (i)
    41
  • (ii)
    43
  • (iii)
    45
  • (iv)
    42
  • (v)
    44
Question 3
3.
Find the median of all the factors of 30.
  • (i)
    21

    4
  • (ii)
    6
  • (iii)
    11

    2
  • (iv)
    9

    2
  • (v)
    13

    2
Question 4
4.
Find the median of first 7 whole numbers.
  • (i)
    2
  • (ii)
    0
  • (iii)
    3
  • (iv)
    4
  • (v)
    6
Question 5
5.
Find the median of all the factors of 40.
  • (i)
    13

    2
  • (ii)
    7
  • (iii)
    25

    4
  • (iv)
    15

    2
  • (v)
    11

    2
Question 6
6.
Find the median of the first 20 odd numbers.
  • (i)
    19
  • (ii)
    17
  • (iii)
    20
  • (iv)
    21
  • (v)
    22
Question 7
7.
Find the median of the first 10 even numbers.
  • (i)
    10
  • (ii)
    11
  • (iii)
    12
  • (iv)
    13
  • (v)
    8
Question 8
8.
    • The marks obtained by 12 students in a test are given below. Find their median marks.
      • 50
      • 38
      • 45
      • 15
      • 28
      • 44
      • 26
      • 49
      • 32
      • 17
      • 16
      • 3
  • (i)
    30
  • (ii)
    33
  • (iii)
    29
  • (iv)
    31
  • (v)
    28
Question 9
9.
    • Heights of 11 students (in cm) are given below. Find the median height.
      • 170
      • 140
      • 163
      • 137
      • 149
      • 173
      • 172
      • 131
      • 174
      • 172
      • 140
  • (i)
    165
    cm
  • (ii)
    161
    cm
  • (iii)
    164
    cm
  • (iv)
    163
    cm
  • (v)
    162
    cm
Question 10
10.
    • Heights of 14 plants (in cm) are given below. Find the median height.
      • 87
      • 87
      • 96
      • 65
      • 62
      • 93
      • 65
      • 74
      • 75
      • 88
      • 57
      • 76
      • 91
      • 64
  • (i)
    76
    cm
  • (ii)
    153

    2
    cm
  • (iii)
    151

    2
    cm
  • (iv)
    155

    2
    cm
Question 11
11.
    • Ages of 13 students (in years) are given below. Find the median age.
      • 15
      • 10
      • 11
      • 12
      • 12
      • 11
      • 15
      • 12
      • 14
      • 13
      • 13
      • 11
      • 12
  • (i)
    13
    years
  • (ii)
    10
    years
  • (iii)
    14
    years
  • (iv)
    11
    years
  • (v)
    12
    years
Question 12
12.
    • Rainfall of 15 days (in mm) are given below. Find the median rainfall.
      • 8
      • 9
      • 11
      • 7
      • 15
      • 15
      • 15
      • 10
      • 8
      • 13
      • 12
      • 12
      • 15
      • 14
      • 5
  • (i)
    13
    mm
  • (ii)
    10
    mm
  • (iii)
    11
    mm
  • (iv)
    12
    mm
  • (v)
    14
    mm
Question 13
13.
    • Scores of 15 students are given below. Find the median score.
      • 83
      • 82
      • 89
      • 80
      • 71
      • 85
      • 90
      • 75
      • 76
      • 70
      • 83
      • 82
      • 76
      • 77
      • 79
  • (i)
    79
  • (ii)
    80
  • (iii)
    82
  • (iv)
    78
  • (v)
    81
Question 14
14.
    • Temperatures of 15 days (in °C) are given below. Find the median temperature.
      • 31
      • 27
      • 32
      • 29
      • 34
      • 34
      • 30
      • 28
      • 33
      • 26
      • 25
      • 30
      • 31
      • 32
      • 26
  • (i)
    28
    °C
  • (ii)
    29
    °C
  • (iii)
    31
    °C
  • (iv)
    32
    °C
  • (v)
    30
    °C
Question 15
15.
    • Weights of 14 students (in kg) are given below. Find the median weight.
      • 47
      • 55
      • 47
      • 56
      • 58
      • 46
      • 53
      • 50
      • 56
      • 47
      • 49
      • 44
      • 47
      • 45
  • (i)
    47
    kg
  • (ii)
    50
    kg
  • (iii)
    46
    kg
  • (iv)
    49
    kg
  • (v)
    48
    kg
Question 16
16.
    • Daily wages of 11 labourers (in ₹) are given below. Find the median wage.
      • 429
      • 383
      • 394
      • 418
      • 336
      • 438
      • 382
      • 426
      • 406
      • 343
      • 392
  • (i)
    395.00
  • (ii)
    394.00
  • (iii)
    396.00
  • (iv)
    392.00
  • (v)
    393.00
Question 17
17.
    • The observations of an ungrouped data are
    • x

      1
    • ,
    • x

      2
    • ,
    • 2x

      1
    • and
    • x

      1
    • <
    • x

      2
    • <
    • 2x

      1
    • .
    • If the mean and median of the data are equal to
    • 12
    • ,
    • find the observations of the data
  • (i)
      • 12
      • ,
      • 12
      • ,
      • 20
  • (ii)
      • 9
      • ,
      • 12
      • ,
      • 18
  • (iii)
      • 8
      • ,
      • 12
      • ,
      • 16
  • (iv)
      • 16
      • ,
      • 12
      • ,
      • 32
Question 18
18.
    • The observations of an ungrouped data are
    • x

      1
    • ,
    • x

      2
    • ,
    • x

      3
    • and
    • x

      1
    • <
    • x

      2
    • <
    • x

      3
    • .
    • If the mean and median of the data are
    • 18
    • and
    • 12
    • respectively and
    • x

      3
    • -
    • x

      1
    • =
    • 30
    • ,
    • find
    • x

      1
    • ,
    • x

      2
    • ,
    • x

      3
  • (i)
      • 6
      • ,
      • 12
      • ,
      • 36
  • (ii)
      • 10
      • ,
      • 12
      • ,
      • 40
  • (iii)
      • 8
      • ,
      • 12
      • ,
      • 38
  • (iv)
      • 12
      • ,
      • 12
      • ,
      • 72
Question 19
19.
    • Given an even number of random samples with the middle two samples as
    • x +
    • 25
    • and x +
    • 26
    • and the median as
    • 32
      1

      2
    • ,
    • find the value of x.
  • (i)
    7
  • (ii)
    8
  • (iii)
    6
  • (iv)
    5
  • (v)
    10
    Assignment Key

  •  1) (v)
  •  2) (ii)
  •  3) (iii)
  •  4) (iii)
  •  5) (i)
  •  6) (iii)
  •  7) (ii)
  •  8) (i)
  •  9) (iv)
  •  10) (iii)
  •  11) (v)
  •  12) (iv)
  •  13) (ii)
  •  14) (v)
  •  15) (v)
  •  16) (ii)
  •  17) (iii)
  •  18) (i)
  •  19) (i)